CVE-2019-10163

Name: CVE-2019-10163
Creator: NVD / NIST
Published: 2019-07-30T23:15:12.263+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2019-10163 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU load or even prevent any further updates to any slave zone by sending a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU load or even prevent any further updates to any slave zone by sending a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

1.00%

58.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Powerdns	Authoritative	>= 4.0.0, < 4.0.8
Powerdns	Authoritative	>= 4.1.0, < 4.1.9
Powerdns	Authoritative	4.1.0
Opensuse	Backports	sle-15
Opensuse	Leap	15.0
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00036.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00054.htmlMailing List, Third Party Advisory
https://blog.powerdns.com/2019/06/21/powerdns-authoritative-server-4-0-8-and-4-1-10-released/Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10163Issue Tracking, Patch, Third Party Advisory
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-05.htmlVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00036.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00054.htmlMailing List, Third Party Advisory
https://blog.powerdns.com/2019/06/21/powerdns-authoritative-server-4-0-8-and-4-1-10-released/Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10163Issue Tracking, Patch, Third Party Advisory
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-05.htmlVendor Advisory

Timeline

Published: Jul 30, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-10163?

How severe is CVE-2019-10163?

CVE-2019-10163 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2019-10163?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-10163?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST